Antenna structure and electronic device

Abstract

An antenna structure is disposed on a metal case. The metal case includes a surface. The antenna structure includes a slot and a metal unit. The slot is formed on the surface along a direction. The metal unit is disposed on the metal case. The metal unit includes at least one blocking part. The at least one blocking part is in contact with the surface, extended toward and crossed over the slot to separate the slot into a plurality of slot paths.

What is claimed is: 
     
         1 . An antenna structure disposed on a metal case, the metal case having a surface, the antenna structure comprising:
 a slot formed on the surface along a direction; and   a metal unit disposed on the metal case, comprising:
 at least one blocking part in contact with the surface, extended toward and crossed over the slot to separate the slot into a plurality of slot paths. 
   
     
     
         2 . The antenna structure according to  claim 1 , wherein the at least one blocking part has a blocking length along the direction, each of the slot paths are spaced apart by the blocking length, and a length of each of the slot paths are greater than the blocking length. 
     
     
         3 . The antenna structure according to  claim 1 , wherein a number of the at least one blocking part is one, the slot paths comprise a first path and a second path, and wherein a length of the first path is smaller than or equal to a length of the second path. 
     
     
         4 . The antenna structure according to  claim 1 , wherein a number of the at least one blocking part is three, the slot paths comprise a first path, a second path, a third path, and a fourth path, wherein a length of the first path is equal to the length of the second path, the length of the third path is equal to the length of the fourth path, and the length of the first path is greater than the length of the third path. 
     
     
         5 . The antenna structure according to  claim 1 , further comprising:
 at least one antenna unit disposed on the metal case, comprising:
 a ground part; 
 a feeding part; 
 a first radiating part connected to the feeding part, the first radiating part feeding a signal through the feeding part to couple each of the slot paths to excite a resonant frequency corresponding to each of the slot paths; and 
 a second radiating part connected to the ground part. 
   
     
     
         6 . The antenna structure according to  claim 5 , wherein the slot paths comprise a first path and a second path, the resonant frequency of the first radiating part coupled to excite each of the slot paths comprises a first frequency band, a second frequency band, and a third frequency band;
 wherein the first frequency band is between 2400 MHz and 2500 MHZ, the second frequency band is between 5100 MHz and 5900 MHZ, the third frequency band is between 5900 MHz and 7100 MHz, and a length of the first path and a length of the second path are smaller than or equal to ½ times a wavelength of the first frequency band.   
     
     
         7 . The antenna structure according to  claim 5 , wherein the slot paths comprise a first path and a second path, the resonant frequency of the first radiating part coupled to excite each of the slot paths comprises a first frequency band, a second frequency band, a third frequency band, a fourth frequency band, and a fifth frequency band;
 wherein the first frequency band is between 600 MHz and 960 MHz, the second frequency band is between 1700 MHz and 2200 MHZ, the third frequency band is between 2300 MHz and 2700 MHZ, the fourth frequency band is between 3300 MHz and 4800 MHz, the fifth frequency band is between 5100 MHz and 5900 MHz, and a length of the second path is smaller than or equal to ½ times a wavelength of the first frequency band.   
     
     
         8 . An antenna structure disposed on a metal case, the metal case having a surface, the antenna structure comprising:
 a slot formed on the surface along a direction; and   a metal unit disposed on the metal case, comprising:
 at least one blocking part in contact with the surface, extended toward and crossed over the slot to separate the slot into a plurality of slot paths; 
   wherein the metal unit is a clickable touch panel.   
     
     
         9 . The antenna structure according to  claim 8 , wherein the at least one blocking part has a blocking length along the direction, each of the slot paths is spaced apart by the blocking length, and a length of each of the slot paths are greater than the blocking length. 
     
     
         10 . The antenna structure according to  claim 8 , wherein a number of the at least one blocking part is one, the slot paths comprise a first path and a second path, and wherein a length of the first path is smaller than or equal to a length of the second path. 
     
     
         11 . The antenna structure according to  claim 8 , wherein a number of the at least one blocking part is three, the slot paths comprise a first path, a second path, a third path, and a fourth path, wherein a length of the first path is equal to the length of the second path, the length of the third path is equal to the length of the fourth path, and the length of the first path is greater than the length of the third path. 
     
     
         12 . The antenna structure according to  claim 8 , further comprising:
 at least one antenna unit disposed on the metal case, comprising:
 a ground part; 
 a feeding part; 
 a first radiating part connected to the feeding part, the first radiating part feeding a signal through the feeding part to couple each of the slot paths to excite a resonant frequency corresponding to each of the slot paths; and 
 a second radiating part connected to the ground part. 
   
     
     
         13 . The antenna structure according to  claim 12 , wherein the slot paths comprise a first path and a second path, the resonant frequency of the first radiating part coupled to excite each of the slot paths comprises a first frequency band, a second frequency band, and a third frequency band;
 wherein the first frequency band is between 2400 MHz and 2500 MHZ, the second frequency band is between 5100 MHz and 5900 MHZ, the third frequency band is between 5900 MHz and 7100 Mhz, and a length of the first path and a length of the second path are smaller than or equal to ½ times a wavelength of the first frequency band.   
     
     
         14 . An antenna structure according to  claim 12 , wherein the slot paths comprise a second path, the resonant frequency of the first radiating part coupled to excite each of the slot paths comprises a first frequency band, a second frequency band, a third frequency band, a fourth frequency band, and a fifth frequency band;
 wherein the first frequency band is between 600 MHz and 960 MHZ, the second frequency band is between 1700 MHz and 2200 MHZ, the third frequency band is between 2300 MHz and 2700 MHZ, the fourth frequency band is between 3300 MHz and 4800 MHZ, the fifth frequency band is between 5100 MHz and 5900 MHZ, and a length of the second path is smaller than or equal to ½ times a wavelength of the first frequency band.   
     
     
         15 . The antenna structure according to  claim 12 , wherein the at least one antenna unit further comprises:
 a substrate disposed on the surface, a vertical projection of the substrate on the surface partially corresponding to the slot and partially corresponding to the metal unit, the ground part, the feeding part, the first radiating part, and the second radiating part being disposed on the substrate.   
     
     
         16 . The antenna structure according to  claim 12 , wherein the ground part, the first radiating part, and the second radiating part are integrally formed with the metal unit, and the feeding part is disposed on the metal unit. 
     
     
         17 . An electronic device comprising:
 a metal case having a surface; and   an antenna structure disposed on the metal case, comprising:
 a slot formed on the surface along a direction; and 
 a metal unit disposed on the metal case, comprising:
 at least one blocking part in contact with the surface, extended toward and crossed over the slot to separate the slot into a plurality of slot paths. 
 
   
     
     
         18 . The electronic device according to  claim 17 , wherein the at least one blocking part has a blocking length along the direction, each of the slot paths are spaced apart by the blocking length, and a length of each of the slot paths are greater than the blocking length. 
     
     
         19 . The electronic device according to  claim 17 , wherein a number of the at least one blocking part is one, the slot paths comprise a first path and a second path, and wherein a length of the first path is smaller than or equal to the length of the second path. 
     
     
         20 . The electronic device according to  claim 17 , wherein a number of the at least one blocking part is three, the slot paths comprise a first path, a second path, a third path, and a fourth path, wherein a length of the first path is equal to the length of the second path, the length of the third path is equal to the length of the fourth path, and the length of the first path is greater than the length of the third path.